| // https://mathiasbynens.be/notes/javascript-encoding | |
| // https://github.com/bestiejs/punycode.js - punycode.ucs2.decode | |
| export default function ucs2length(str: string): number { | |
| const len = str.length | |
| let length = 0 | |
| let pos = 0 | |
| let value: number | |
| while (pos < len) { | |
| length++ | |
| value = str.charCodeAt(pos++) | |
| if (value >= 0xd800 && value <= 0xdbff && pos < len) { | |
| // high surrogate, and there is a next character | |
| value = str.charCodeAt(pos) | |
| if ((value & 0xfc00) === 0xdc00) pos++ // low surrogate | |
| } | |
| } | |
| return length | |
| } | |
| ucs2length.code = 'require("ajv/dist/runtime/ucs2length").default' | |